Your font is missing a character there. It's a unicode character that shows that the page name was shortened in the middle.

2009-07-27dzwarg

I am using the default theme/fonts that come with DokuWiki, and I observe this behavior in IE 6, IE 7, Opera, Safari, and FF 3. If the default theme and font combination for these browsers exhibits this strangely encoded character, doesn't that qualify as a bug?

Wouldn't it be a better user experience to have the default character that notates a shortened namespace/page be an ellipsis (or some other character that exists in the default font) for popular browsers?